My IO-540 with Hartzell compact 2 blade prop is smoother at 2700 RPM
than at cruise (2200-2400 RPM). If I have it dynamically balanced at
cruise will it vibrate more at climb power? Does the fact that it's
smooth at climb power suggest that the engine/prop combo is okay and
there is a problem elsewhere (mounts, etc)?

--
Ben Jackson

http://www.ben.com/